a(n) = n^3 - 2*n^2 + 2.

Terms

a(0) =1a(1) =2a(2) =11a(3) =34a(4) =77a(5) =146a(6) =247a(7) =386a(8) =569a(9) =802a(10) =1091a(11) =1442a(12) =1861a(13) =2354a(14) =2927a(15) =3586a(16) =4337a(17) =5186a(18) =6139a(19) =7202a(20) =8381a(21) =9682a(22) =11111a(23) =12674a(24) =14377a(25) =16226a(26) =18227a(27) =20386a(28) =22709a(29) =25202